/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
*
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.avalon.fortress.impl.lookup;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceManager;
/**
* No-op ServiceManager contains no components, and is used when we don't want to allow a component to access other
* components.
*
* @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</a>
* @version CVS $ Revision: 1.1 $
*/
public class NoopServiceManager implements ServiceManager
{
private static final String MESSAGE = "Could not return a reference to the Component";
public Object lookup( String role ) throws ServiceException
{
throw new ServiceException(role, MESSAGE);
}
public boolean hasService( String role )
{
return false;
}
public void release( Object component )
{
// Do nothing
}
}